-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LNET
{
unsigned int mflags = 0;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
- if (flags & CFS_ALLOC_ATOMIC)
- mflags |= __GFP_HIGH;
- else if (flags & CFS_ALLOC_WAIT)
- mflags |= __GFP_WAIT;
- else
- mflags |= (__GFP_HIGH | __GFP_WAIT);
- if (flags & CFS_ALLOC_IO)
- mflags |= __GFP_IO | __GFP_HIGHIO;
-#else
if (flags & CFS_ALLOC_ATOMIC)
mflags |= __GFP_HIGH;
else
mflags |= __GFP_NOWARN;
if (flags & CFS_ALLOC_IO)
mflags |= __GFP_IO;
-#endif
if (flags & CFS_ALLOC_FS)
mflags |= __GFP_FS;
- if (flags & CFS_ALLOC_HIGH)
- mflags |= __GFP_HIGH;
+ if (flags & CFS_ALLOC_HIGHMEM)
+ mflags |= __GFP_HIGHMEM;
return mflags;
}
vfree(addr);
}
-cfs_page_t *cfs_alloc_pages(unsigned int flags, unsigned int order)
+cfs_page_t *cfs_alloc_page(unsigned int flags)
{
/*
* XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
* from here: this will lead to infinite recursion.
*/
- return alloc_pages(cfs_alloc_flags_to_gfp(flags), order);
+ return alloc_page(cfs_alloc_flags_to_gfp(flags));
}
-void __cfs_free_pages(cfs_page_t *page, unsigned int order)
+void cfs_free_page(cfs_page_t *page)
{
- __free_pages(page, order);
+ __free_page(page);
}
cfs_mem_cache_t *
return kmem_cache_free(cachep, objp);
}
+/**
+ * Returns true if \a addr is an address of an allocated object in a slab \a
+ * kmem. Used in assertions. This check is optimistically imprecise, i.e., it
+ * occasionally returns true for the incorrect addresses, but if it returns
+ * false, then the addresses is guaranteed to be incorrect.
+ */
+int cfs_mem_is_in_cache(const void *addr, const cfs_mem_cache_t *kmem)
+{
+#ifdef CONFIG_SLAB
+ struct page *page;
+
+ /*
+ * XXX Copy of mm/slab.c:virt_to_cache(). It won't work with other
+ * allocators, like slub and slob.
+ */
+ page = virt_to_page(addr);
+ if (unlikely(PageCompound(page)))
+ page = (struct page *)page->private;
+ return PageSlab(page) && ((void *)page->lru.next) == kmem;
+#else
+ return 1;
+#endif
+}
+EXPORT_SYMBOL(cfs_mem_is_in_cache);
+
+
EXPORT_SYMBOL(cfs_alloc);
EXPORT_SYMBOL(cfs_free);
EXPORT_SYMBOL(cfs_alloc_large);
EXPORT_SYMBOL(cfs_free_large);
-EXPORT_SYMBOL(cfs_alloc_pages);
-EXPORT_SYMBOL(__cfs_free_pages);
+EXPORT_SYMBOL(cfs_alloc_page);
+EXPORT_SYMBOL(cfs_free_page);
EXPORT_SYMBOL(cfs_mem_cache_create);
EXPORT_SYMBOL(cfs_mem_cache_destroy);
EXPORT_SYMBOL(cfs_mem_cache_alloc);
EXPORT_SYMBOL(cfs_mem_cache_free);
+
+/*
+ * NB: we will rename some of above functions in another patch:
+ * - rename cfs_alloc to cfs_malloc
+ * - rename cfs_alloc/free_page to cfs_page_alloc/free
+ * - rename cfs_alloc/free_large to cfs_vmalloc/vfree
+ */
+
+void *
+cfs_cpt_malloc(struct cfs_cpt_table *cptab, int cpt,
+ size_t nr_bytes, unsigned int flags)
+{
+ void *ptr;
+
+ ptr = kmalloc_node(nr_bytes, cfs_alloc_flags_to_gfp(flags),
+ cfs_cpt_spread_node(cptab, cpt));
+ if (ptr != NULL && (flags & CFS_ALLOC_ZERO) != 0)
+ memset(ptr, 0, nr_bytes);
+
+ return ptr;
+}
+EXPORT_SYMBOL(cfs_cpt_malloc);
+
+void *
+cfs_cpt_vmalloc(struct cfs_cpt_table *cptab, int cpt, size_t nr_bytes)
+{
+ return vmalloc_node(nr_bytes, cfs_cpt_spread_node(cptab, cpt));
+}
+EXPORT_SYMBOL(cfs_cpt_vmalloc);
+
+cfs_page_t *
+cfs_page_cpt_alloc(struct cfs_cpt_table *cptab, int cpt, unsigned int flags)
+{
+ return alloc_pages_node(cfs_cpt_spread_node(cptab, cpt),
+ cfs_alloc_flags_to_gfp(flags), 0);
+}
+EXPORT_SYMBOL(cfs_page_cpt_alloc);
+
+void *
+cfs_mem_cache_cpt_alloc(cfs_mem_cache_t *cachep, struct cfs_cpt_table *cptab,
+ int cpt, unsigned int flags)
+{
+ return kmem_cache_alloc_node(cachep, cfs_alloc_flags_to_gfp(flags),
+ cfs_cpt_spread_node(cptab, cpt));
+}
+EXPORT_SYMBOL(cfs_mem_cache_cpt_alloc);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff